"Wed, 21 Aug 2024 13:30:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240821
Only TIME
13:30:40
General datetime
2024-08-21 13:30:40Z
For Database
2024-08-21 13:30:40
For HTTP1.1
Wed, 21 Aug 2024 13:30:40 GMT